108 lines
2.7 KiB
PHP
108 lines
2.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Routing\Matcher\Dumper;
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/**
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* Prefix tree of routes preserving routes order.
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*
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* @author Arnaud Le Blanc <arnaud.lb@gmail.com>
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*
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* @internal
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*/
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class DumperPrefixCollection extends DumperCollection
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{
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/**
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* @var string
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*/
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private $prefix = '';
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/**
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* Returns the prefix.
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*
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* @return string The prefix
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*/
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public function getPrefix()
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{
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return $this->prefix;
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}
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/**
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* Sets the prefix.
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*
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* @param string $prefix The prefix
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*/
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public function setPrefix($prefix)
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{
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$this->prefix = $prefix;
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}
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/**
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* Adds a route in the tree.
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*
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* @param DumperRoute $route The route
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*
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* @return DumperPrefixCollection The node the route was added to
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*
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* @throws \LogicException
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*/
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public function addPrefixRoute(DumperRoute $route)
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{
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$prefix = $route->getRoute()->compile()->getStaticPrefix();
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for ($collection = $this; null !== $collection; $collection = $collection->getParent()) {
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// Same prefix, add to current leave
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if ($collection->prefix === $prefix) {
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$collection->add($route);
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return $collection;
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}
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// Prefix starts with route's prefix
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if ('' === $collection->prefix || 0 === strpos($prefix, $collection->prefix)) {
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$child = new self();
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$child->setPrefix(substr($prefix, 0, strlen($collection->prefix) + 1));
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$collection->add($child);
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return $child->addPrefixRoute($route);
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}
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}
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// Reached only if the root has a non empty prefix
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throw new \LogicException('The collection root must not have a prefix');
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}
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/**
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* Merges nodes whose prefix ends with a slash.
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*
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* Children of a node whose prefix ends with a slash are moved to the parent node
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*/
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public function mergeSlashNodes()
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{
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$children = array();
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foreach ($this as $child) {
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if ($child instanceof self) {
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$child->mergeSlashNodes();
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if ('/' === substr($child->prefix, -1)) {
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$children = array_merge($children, $child->all());
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} else {
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$children[] = $child;
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}
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} else {
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$children[] = $child;
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}
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}
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$this->setAll($children);
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}
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}
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